Maxim > Products > Supervisors, Voltage Monitors, Sequencers > MAX6841, MAX6842, MAX6843, ...

MAX6841, MAX6842, MAX6843, MAX6844, MAX6845

Ultra-Low-Voltage µP Reset Circuits and Voltage Detectors

Ultra-Low-Voltage SC70 µP Supervisors Monitor Supplies Down to 0.9V with No External Components
 Overview   Technical Documents   Ordering Info   Related Products   User Comments (0)   All   


Status Explanations for product status codes

Active: In Production.

Description

The MAX6841–MAX6845 microprocessor (µP) supervisory circuits monitor ultra-low-voltage power supplies in µP and digital systems. They provide excellent circuit reliability at low cost by eliminating external components and adjustments when used with +0.9V to +1.5V systems. Factory-trimmed reset thresholds are available for the MAX6841/MAX6842. The MAX6843/MAX6844/MAX6845 provide a RESET IN input, allowing the user to externally adjust the reset threshold. The MAX6841–MAX6845 family features a debounced manual reset input (active-low MR). The reset comparator is designed to ignore fast transients on VCC.

The MAX6841–MAX6845 assert a reset signal whenever the VCC supply voltage declines below a preset or adjustable threshold or whenever manual reset (active-low MR) is asserted. Reset remains asserted for a fixed timeout delay after VCC has risen above the reset threshold and when manual reset is deasserted. Five timeout periods are available for each part: 150µs (voltage detector version), 1.5ms, 30ms, 210ms, and 1.68s (typ).

The MAX6841/MAX6843 have an active-low push-pull reset output. The MAX6841/MAX6842/MAX6844 have an active-high push-pull reset output, and the MAX6842/MAX6845 have an active-low open-drain reset output. The active-low open-drain reset output requires a pullup resistor that can be connected to a voltage from 0 to VCC.

The low supply current (5.7µA) and small package (SOT23-5) make the MAX6841–MAX6845 ideal for use in portable equipment.
 

Data Sheet

Download this datasheet in PDF formatDownload Rev 2 (PDF, 584kB)
Send this datasheet to any email addressE-Mail

Key Features

  • Factory-Set Reset Threshold Voltages for Monitoring Supplies from 0.9V to 1.5V (MAX6841/MAX6842)
  • Adjustable Threshold RESET IN (MAX6843/MAX6844/MAX6845)
  • Low Power Consumption: 5.7µA (typ)
  • ±2.5% Reset Threshold Accuracy Over Temperature
  • Five Timeout Periods: 150µs (Voltage Detector Version), 1.5ms, 30ms, 210ms, and 1.68s
  • Available in Three Output Configurations
    • Push-Pull active-low RESET
    • Push-Pull RESET
    • Open-Drain active-low RESET
  • Guaranteed Reset Valid to VCC = 0.55V (Active Low)
  • Manual Reset Input
  • Immune to Short VCC Transients
  • Space-Saving 5-Pin SOT23 Package
 

Applications/Uses

  • Computers
  • Controllers
  • Critical µP and µC Power Monitoring
  • Intelligent Instruments
  • Portable Battery-Powered Equipment
  • Servers and Workstations
  • Telecom/Networking Equipment
  • Wireless Base Stations
   

Key Specifications:

Supervisors (1 Monitored Voltage)
Part Number Reset Thresh.
(V)		 Reset Out tRESET Watchdog Feature Supervisor Features Reset Thresh. Accur.
(%)		 ICC
(µA)		 Budgetary Price
min @ +25°C max See Notes
MAX6841 
0 to 1.2
1.2 to 1.8
Active High
Active Low
Push-Pull
1ms to 15ms
15ms to 85ms
85ms to 300ms
<1ms
>1s
 No Watchdog Manual Reset 2.5 20 $1.21 @1k
MAX6842 
0 to 1.2
1.2 to 1.8
Active High
Active Low
Open Drain
Push-Pull
 Manual Reset $1.21 @1k
MAX6843 
0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
Active Low
Push-Pull
Adjustable Reset Input
Manual Reset
 $1.21 @1k
MAX6844 
0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
Active High
Push-Pull
Adjustable Reset Input
Manual Reset
 $1.21 @1k
MAX6845 
0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
Active Low
Open Drain
Adjustable Reset Input
Manual Reset
 $1.21 @1k
See All Supervisors (1 Monitored Voltage) (274)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


Diagram

MAX6841, MAX6842, MAX6843, MAX6844, MAX6845: Typical Operating Circuit
Typical Operating Circuit

Product Guides

Microprocessor Supervisory (PDF)

Reliability Reports

Reliability Report: MAX6841.pdf MAX6842.pdf MAX6843.pdf MAX6844.pdf MAX6845.pdf
Show FIT data for:

Software/Models

none

Ordering Information

Filters: Part Number: Package: Temperature: Tape and Reel Sample
Devices: 1-50 / 150 <-- Previous  1 2 3   Next -->
Part Number Free
Sample		 Buy Status Explanations for product status codes Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR * 		Temp RoHS/Lead-Free?
Materials Analysis
MAX6841DUKD0+T    
Active SOT;5 pin;9 mm²
Outline Drawing:21-0057 (PDF)
Land Pattern: 90-0174 (PDF)
Use pkgcode/variation: U5+1*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX6841DUKD0-T    
Active SOT;5 pin;9 mm²
Outline Drawing:21-0057 (PDF)
Land Pattern: 90-0174 (PDF)
Use pkgcode/variation: U5-1*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6841DUKD1+T    
Active SOT;

Land Pattern: Not Available

-40°C to +85°C See data sheet
MAX6841DUKD1-T    
Active SOT;5 pin;9 mm²
Outline Drawing:21-0057 (PDF)
Land Pattern: 90-0174 (PDF)
Use pkgcode/variation: U5-1*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6841DUKD2+T    
Active SOT;

Land Pattern: Not Available

-40°C to +85°C See data sheet
MAX6841DUKD2-T    
Active SOT;5 pin;9 mm²
Outline Drawing:21-0057 (PDF)
Land Pattern: 90-0174 (PDF)
Use pkgcode/variation: U5-1*
RoHS/Lead-Free: No
Materials Analysis
MAX6841DUKD3+T    
Active SOT;5 pin;9 mm²
Outline Drawing:21-0057 (PDF)
Land Pattern: 90-0174 (PDF)
Use pkgcode/variation: U5+1*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX6841DUKD3-T    
Active SOT;5 pin;9 mm²
Outline Drawing:21-0057 (PDF)
Land Pattern: 90-0174 (PDF)
Use pkgcode/variation: U5-1*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6841DUKD4+T    
Active SOT;5 pin;9 mm²
Outline Drawing:21-0057 (PDF)
Land Pattern: 90-0174 (PDF)
Use pkgcode/variation: U5+1*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX6841DUKD4-T    
Active SOT;5 pin;9 mm²
Outline Drawing:21-0057 (PDF)
Land Pattern: 90-0174 (PDF)
Use pkgcode/variation: U5-1*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
Part Number Free
Sample		 Buy Status Explanations for product status codes Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR * 		Temp RoHS/Lead-Free?
Materials Analysis
MAX6841EUKD0+T    
Active SOT;5 pin;9 mm²
Outline Drawing:21-0057 (PDF)
Land Pattern: 90-0174 (PDF)
Use pkgcode/variation: U5+1*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX6841EUKD0-T    
Active SOT;5 pin;9 mm²
Outline Drawing:21-0057 (PDF)
Land Pattern: 90-0174 (PDF)
Use pkgcode/variation: U5-1*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6841EUKD1+T    
Active SOT;

Land Pattern: Not Available

-40°C to +85°C See data sheet
MAX6841EUKD1-T    
Active SOT;5 pin;9 mm²
Outline Drawing:21-0057 (PDF)
Land Pattern: 90-0174 (PDF)
Use pkgcode/variation: U5-1*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6841EUKD2+T    
Active SOT;

Land Pattern: Not Available

-40°C to +85°C See data sheet
MAX6841EUKD2-T    
Active SOT;5 pin;9 mm²
Outline Drawing:21-0057 (PDF)
Land Pattern: 90-0174 (PDF)
Use pkgcode/variation: U5-1*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6841EUKD4+T    
Active SOT;

Land Pattern: Not Available

-40°C to +85°C See data sheet
MAX6841EUKD4-T    
Active SOT;5 pin;9 mm²
Outline Drawing:21-0057 (PDF)
Land Pattern: 90-0174 (PDF)
Use pkgcode/variation: U5-1*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6841FUKD0+T    
Active SOT;5 pin;9 mm²
Outline Drawing:21-0057 (PDF)
Land Pattern: 90-0174 (PDF)
Use pkgcode/variation: U5+1*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX6841FUKD0-T    
Active SOT;5 pin;9 mm²
Outline Drawing:21-0057 (PDF)
Land Pattern: 90-0174 (PDF)
Use pkgcode/variation: U5-1*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
Part Number Free
Sample		 Buy Status Explanations for product status codes Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR * 		Temp RoHS/Lead-Free?
Materials Analysis
MAX6841FUKD1+T    
Active SOT;

Land Pattern: Not Available

-40°C to +85°C See data sheet
MAX6841FUKD1-T    
Active SOT;5 pin;9 mm²
Outline Drawing:21-0057 (PDF)
Land Pattern: 90-0174 (PDF)
Use pkgcode/variation: U5-1*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6841FUKD2+T    
Active SOT;

Land Pattern: Not Available

-40°C to +85°C See data sheet
MAX6841FUKD2-T    
Active SOT;5 pin;9 mm²
Outline Drawing:21-0057 (PDF)
Land Pattern: 90-0174 (PDF)
Use pkgcode/variation: U5-1*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6841FUKD3+T    
Active SOT;5 pin;9 mm²
Outline Drawing:21-0057 (PDF)
Land Pattern: 90-0174 (PDF)
Use pkgcode/variation: U5+1*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX6841FUKD3-T    
Active SOT;5 pin;9 mm²
Outline Drawing:21-0057 (PDF)
Land Pattern: 90-0174 (PDF)
Use pkgcode/variation: U5-1*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6841FUKD4+T    
Active SOT;

Land Pattern: Not Available

-40°C to +85°C See data sheet
MAX6841FUKD4-T    
Active SOT;5 pin;9 mm²
Outline Drawing:21-0057 (PDF)
Land Pattern: 90-0174 (PDF)
Use pkgcode/variation: U5-1*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6841GUKD0+T    
Active SOT;

Land Pattern: Not Available

-40°C to +85°C See data sheet
MAX6841GUKD0-T    
Active SOT;5 pin;9 mm²
Outline Drawing:21-0057 (PDF)
Land Pattern: 90-0174 (PDF)
Use pkgcode/variation: U5-1*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
Part Number Free
Sample		 Buy Status Explanations for product status codes Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR * 		Temp RoHS/Lead-Free?
Materials Analysis
MAX6841GUKD1+T    
Active SOT;

Land Pattern: Not Available

-40°C to +85°C See data sheet
MAX6841GUKD1-T    
Active SOT;5 pin;9 mm²
Outline Drawing:21-0057 (PDF)
Land Pattern: 90-0174 (PDF)
Use pkgcode/variation: U5-1*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6841GUKD2+T    
Active SOT;

Land Pattern: Not Available

-40°C to +85°C See data sheet
MAX6841GUKD2-T    
Active SOT;5 pin;9 mm²
Outline Drawing:21-0057 (PDF)
Land Pattern: 90-0174 (PDF)
Use pkgcode/variation: U5-1*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6841GUKD4+T    
Active SOT;

Land Pattern: Not Available

-40°C to +85°C See data sheet
MAX6841GUKD4-T    
Active SOT;5 pin;9 mm²
Outline Drawing:21-0057 (PDF)
Land Pattern: 90-0174 (PDF)
Use pkgcode/variation: U5-1*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6841HUKD0+T    
Active SOT;5 pin;9 mm²
Outline Drawing:21-0057 (PDF)
Land Pattern: 90-0174 (PDF)
Use pkgcode/variation: U5+1*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX6841HUKD0-T    
Active SOT;5 pin;9 mm²
Outline Drawing:21-0057 (PDF)
Land Pattern: 90-0174 (PDF)
Use pkgcode/variation: U5-1*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6841HUKD1+T    
Active SOT;

Land Pattern: Not Available

-40°C to +85°C See data sheet
MAX6841HUKD1-T    
Active SOT;5 pin;9 mm²
Outline Drawing:21-0057 (PDF)
Land Pattern: 90-0174 (PDF)
Use pkgcode/variation: U5-1*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
Part Number Free
Sample		 Buy Status Explanations for product status codes Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR * 		Temp RoHS/Lead-Free?
Materials Analysis
MAX6841HUKD2+T    
Active SOT;

Land Pattern: Not Available

-40°C to +85°C See data sheet
MAX6841HUKD2-T    
Active SOT;5 pin;9 mm²
Outline Drawing:21-0057 (PDF)
Land Pattern: 90-0174 (PDF)
Use pkgcode/variation: U5-1*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6841HUKD3+T    
Active SOT;5 pin;9 mm²
Outline Drawing:21-0057 (PDF)
Land Pattern: 90-0174 (PDF)
Use pkgcode/variation: U5+1*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX6841HUKD3-T    
Active SOT;5 pin;9 mm²
Outline Drawing:21-0057 (PDF)
Land Pattern: 90-0174 (PDF)
Use pkgcode/variation: U5-1*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6841HUKD4+T    
Active SOT;

Land Pattern: Not Available

-40°C to +85°C See data sheet
MAX6841HUKD4-T    
Active SOT;5 pin;9 mm²
Outline Drawing:21-0057 (PDF)
Land Pattern: 90-0174 (PDF)
Use pkgcode/variation: U5-1*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6841IUKD0+T    
Active SOT;

Land Pattern: Not Available

-40°C to +85°C See data sheet
MAX6841IUKD0-T    
Active SOT;5 pin;9 mm²
Outline Drawing:21-0057 (PDF)
Land Pattern: 90-0174 (PDF)
Use pkgcode/variation: U5-1*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX6841IUKD1+T    
Active SOT;

Land Pattern: Not Available

-40°C to +85°C See data sheet
MAX6841IUKD1-T    
Active SOT;5 pin;9 mm²
Outline Drawing:21-0057 (PDF)
Land Pattern: 90-0174 (PDF)
Use pkgcode/variation: U5-1*
RoHS/Lead-Free: No
Materials Analysis
Devices: 1-50 / 150 <-- Previous  1 2 3   Next -->

Notes:
  1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
  2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
  3. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
  4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Similar Products by Function

MAX6832, MAX6833, MAX6834, ... Ultra-Low-Voltage SC70 Voltage Detectors and µP Reset Circuits
See All Supervisors (1 Monitored Voltage) (274 Products)

Similar Products by Application

Computers: Desktops and Workstations > Microprocessor Supervisors
Computers: Desktops and Workstations > Single, Low-Voltage Supervisors
Power Solutions for Nonportable Applications > Sequencing/Tracking and Supervisory
Switch/Router Line Card > Reset and Watchdog Timer
Switch/Router Switch Card > Reset and Watchdog Timer
Telecom Line Cards: T1, E1, J1 > Single Low-Voltage Supervisors
Telecom Line Cards: T3, E3, STS-1 > Single Low-Voltage Supervisors
Telecom Switches (PBX and Central Office) > Single Low-Voltage Supervisors
Transport Nodes, Access Nodes, Add/Drop Multiplexers, and Digital Cross-Connects > Single Low-Voltage Supervisors

More Information

New Product Press Release [ 2002-11-19 ]


Didn't Find What You Need?

Next Day Product Selection Assistance from Applications Engineers
Parametric Search
Applications Help

Information Index

Overview

  

Technical Documents

  

Ordering Info

  

Related Products

  
Description
Key Features
Applications/Uses
Key Specifications
Diagram
Notes and Comments
  Data Sheet
Application Notes
Evaluation Kits
Product Guides
Reliability Reports
Software/Models
  Price and Availability
Samples
Buy Online
Package Information
Lead-Free Information
  Similar Products by Function
Similar Products by Application
Evaluation Kits
Products with Similar Part Numbers
Products Used With This
 
Document Ref.: 19-2625 Rev 2; 2006-06-05
This page last modified: 2008-03-13

 


Contact Us     |     Privacy Policy     |     Legal Notices
Copyright © 2012 by Maxim Integrated Products